WATCHES: Severe Thunderstorm Watch Number 153

WWUS20 KWNS 120417
SEL3
SPC WW 120417
KSZ000-121200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 153
NWS STORM PREDICTION CENTER NORMAN OK
1120 PM CDT TUE MAY 11 2010

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

MUCH OF SOUTHERN AND CENTRAL KANSAS

EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 1120 PM
UNTIL 700 AM CDT.

HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES WEST OF
GARDEN CITY KANSAS TO 50 MILES EAST NORTHEAST OF CHANUTE KANSAS.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU3).

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

OTHER WATCH INFORMATION...THIS SEVERE THUNDERSTORM WATCH REPLACES
TORNADO WATCH NUMBER 152. WATCH NUMBER 152 WILL NOT BE IN EFFECT
AFTER 1120 PM CDT.

DISCUSSION...WITH THE STRENGTHENING LOW LEVEL JET AND CONTINUED
SURGING OF VERY MOIST UNSTABLE AIR MASS NWD ACROSS THE WARM FRONT
ALONG KS/OK BORDER...CONDITIONS ARE VERY FAVORABLE FOR ELEVATED
SUPERCELL DEVELOPMENT. THE PRIMARY THREAT WILL BE LARGE HAIL
ASSOCIATED WITH ANY SUPERCELL ALONG WITH LOCAL DAMAGING WINDS WHERE
STORMS CAN DEVELOP INTO SHORT LINE SEGMENTS.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 24035.

...HALES

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
To unsubscribe from WX-STORM send e-mail to LISTSERV@LISTSERV.ILLINOIS.EDU with
"unsub wx-storm" in the body of your message. For more information write cnovy@cox.net.